So, if I want to place a cache in three rivers - I pick a spot within guidelines, mail in the registration, get some kind of notification back? (Mail? Email?). And then post for gc.com reviewer? Do I need to submit proof of the approval and if so how? Any past experiences on how long three rivers tends to take?

So, if I want to place a cache in three rivers - I pick a spot within guidelines, mail in the registration, get some kind of notification back? (Mail? Email?). And then post for gc.com reviewer? Do I need to submit proof of the approval and if so how? Any past experiences on how long three rivers tends to take?

Once you pick out a spot within the guidelines I would suggest creating a cache page (but don't enable it for review yet). This indicates to the reviewer that you're in the process of obtaining permission should another cache be submitted nearby.

You can email the permission in, and you'll receive an email back (provided that you give them a reply email - usually it comes within a couple of days I think). For Three Rivers the reviewers will also receive a copy of the email from Three Rivers, so just indicate in a reviewer note that the cache was approved by Three Rivers.

Once you have the permission then finalize the cache page and enable it for review!

Actually it was very smooth and painless compared to the permit process my city park system used to have (no more, thank goodness) which often took weeks and was very frustrating. For Three Rivers I submitted a very simple form online on Friday afternoon and had an email permit in my inbox by Monday morning. I'd prefer no permits too, but if a parks system is going to have a permit process, I'd say Three Rivers does a good job.